Unable to undock floater

/*************************************************************************************
Author:			Joe Gunn
Company:		Joe Gunn 3d
 
Script Version:	Read history below. 
Max Version: 	2008 and above
Purpose:		Facial animation, swapping textures via material IDs
				You must USE .bmp files for displaying the thumbnails in the UI_ln.
				Also your bmp's must be named in 01.bmp, 02.bmp, all the way to 10.bmp
 
Bugs:
	-Most likely a bunch but it worx
 
Warning:
	-This script is the property of Joe Gunn
	-Use this script at your own risk. 
	-This script can be used in production free of charge.
*************************************************************************************/
 
 
rollout first_roll "Character_Faces" width:275 height:170
(
 
	button btnSetD "Set Dir:" pos:[5,11] width:42 height:22 toolTip:"locate your images"  
	edittext Fdir "" pos:[50,13] width:201 height:17
	button btn01 "01" pos:[62,40] width:32 height:32  
	button btn02 "02" pos:[102,40] width:32 height:32 
	button btn03 "03" pos:[142,40] width:32 height:32  
	button btn04 "04" pos:[182,40] width:32 height:32  
	button btn05 "05" pos:[220,40] width:32 height:32  
	button btn06 "06" pos:[62,78] width:32 height:32 
	button btn07 "07" pos:[102,78] width:32 height:32 
	button btn08 "08" pos:[142,78] width:32 height:32  
	button btn09 "09" pos:[182,78] width:32 height:32 
	button btn10 "10" pos:[220,78] width:32 height:32  
	--LAYER MANAGER		
	checkbutton LayerMan "" pos:[12,76] width:27 height:27 toolTip:"Layers Toggle" checked:false images:#("UI_ln\Icons\LayerToolbar_24i.bmp", "UI_ln\Icons\LayerToolbar_24i.bmp", 6, 5, 5, 5, 5) across:8
		------Open Curve Editor		
	checkbutton CEdit "CurveEditor" pos:[12,44] width:27 height:27 toolTip:"Curve Toggle" checked:false images:#("UI_ln\Icons\TrackBar_24i.bmp", "UI_ln\Icons\TrackBar_24i.bmp", 2, 2, 2, 2, 2) across:8
 
	HyperLink JD "joegunn3D.com" pos:[6,110] width:77 height:16 visitedcolor:(color 255 0 0) color:(color 0 153 204) address:"www.joegunn3d.com"
	GroupBox grptoggles "" pos:[6,33] width:40 height:74
	label lbltag "If you don't know...better ask somebody" pos:[54,125] width:191 height:14
 
	button btn_undock "Undock" offset:[50,0]
 
	on btn_undock pressed do
	(
		cui.FloatDialogBar FaceFloater
	)
 
	on btnSetD pressed do
	(
		local curpath = Fdir.text 
		local newPath = getSavePath initialDir:(curpath) caption:"Select the path where your Face Images are located" 
		if newPath != undefined then
		(
			Fdir.text = newpath
			btn01.images = #(Fdir.text + "\01.bmp", Fdir.text + "\01.bmp", 1, 1, 1, 1, 1)
			btn02.images = #(Fdir.text + "\02.bmp", Fdir.text + "\02.bmp", 1, 1, 1, 1, 1)
			btn03.images = #(Fdir.text + "\03.bmp", Fdir.text + "\03.bmp", 1, 1, 1, 1, 1)
			btn04.images = #(Fdir.text + "\04.bmp", Fdir.text + "\04.bmp", 1, 1, 1, 1, 1)
			btn05.images = #(Fdir.text + "\05.bmp", Fdir.text + "\05.bmp", 1, 1, 1, 1, 1)
			btn06.images = #(Fdir.text + "\06.bmp", Fdir.text + "\06.bmp", 1, 1, 1, 1, 1)
			btn07.images = #(Fdir.text + "\07.bmp", Fdir.text + "\07.bmp", 1, 1, 1, 1, 1)
			btn08.images = #(Fdir.text + "\08.bmp", Fdir.text + "\08.bmp", 1, 1, 1, 1, 1)
			btn09.images = #(Fdir.text + "\09.bmp", Fdir.text + "\09.bmp", 1, 1, 1, 1, 1)
			btn10.images = #(Fdir.text + "\10.bmp", Fdir.text + "\10.bmp", 1, 1, 1, 1, 1)
		)
 
		)
 
	on btn01 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 1
	)
 
	on btn02 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 2
	)
 
	on btn03 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 3
	)
 
	on btn04 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 4
	)
 
	on btn05 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 5
	)
 
	on btn06 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 6
	)
 
	on btn07 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 7
	)
 
	on btn08 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 8
	)
 
	on btn09 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 9
	)
 
	on btn10 pressed do
	(
		for i in selection do
			if i.modifiers[#Material] != undefined then
				i.modifiers[#Material].materialID = 10
	)
 
	on LayerMan changed state do
	(
			if state == on 
			then macros.run "Layers" "LayerManager" -- Layer Manager
			else layermanager.closeDialog()
		)
	on CEdit changed state do
	(
		if state == on 
		then macros.run "Track View" "LaunchFCurveEditor"
		else trackviews.close 1
	)
)
 
global FaceFloater = newRolloutFloater "Face Switcher V1.3" 275 176
cUI.RegisterDialogBar FaceFloater style:#(#cUI_floatable,#cUI_dock_left,#cUI_dock_right,#cui_dock_top,#cui_dock_bottom,#cUI_handles)
 
addRollout first_roll FaceFloater